| 肥料增效剂γ-聚谷氨酸对小青菜产量和品质的影响 |
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| 引用本文： | 许宗奇,万传宝,许仙菊,张丹,徐虹.肥料增效剂γ-聚谷氨酸对小青菜产量和品质的影响[J].生物加工过程,2012,10(1):58-62. |
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| 作者姓名： | 许宗奇 万传宝 许仙菊 张丹 徐虹 |
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| 作者单位： | 1. 南京工业大学食品与轻工学院,南京,210009
2. 江苏省农业科学院农业资源与环境研究所,南京,210014 |
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| 基金项目： | 江苏省农业科技自主创新资金项目(cx |
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| 摘 要： | 研究了γ-聚谷氨酸(γ-PGA)肥料增效剂对盆栽小青菜产量和品质的影响.结果表明:正常施肥条件下,施用50 mg/kg的γ-PGA可以显著提高小青菜叶绿素、地下部鲜质量,使小青菜地上部鲜质量最大增产幅度达8.8％,与对照相比差异显著；同时还可以明显提高土壤铵态氮的含量,氮肥利用率增加10.6％.施用100 mg/kg的γ-PGA与对照相比,可降低小青菜中的硝酸盐含量44.8％,维生素C(Vc)含量提高18.1％,小青菜品质达到最好；当减施15％质量的氮肥时,20 mg/kg的γ-PGA可提高氮肥利用率10.2％～11.6％,说明在肥料缺乏时γ-PGA对小青菜产量、品质的改善效果显著.
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| 关 键 词： | 小青菜 肥料 γ-聚谷氨酸 |
Effects of poly( γ-glutamic acid) application on yield and quality of potted Brassica chinensis |
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| XU Zongqi,WAN Chuanbao,XU Xianju,ZHANG Dan,XU Hong.Effects of poly( γ-glutamic acid) application on yield and quality of potted Brassica chinensis[J].Chinese Journal of Bioprocess Engineering,2012,10(1):58-62. |
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| Authors: | XU Zongqi WAN Chuanbao XU Xianju ZHANG Dan XU Hong |
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| Institution: | 1.College of Food Science and Light Industry,Nanjing University of Technology,Nanjing 210009,China; 2.Institute of Agricultural Resource and Environmental Sciences,Jiangsu Academy of Agricultural Sciences, Nanjing 210014,China) |
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| Abstract: | An effect of a fortified fertilizer by poly（γ-glutamic acid） on the yield and quality of potted Brassica chinensis was studied.The results showed that the contents of chlorophyll,above ground fresh weight,nitrate,vitamin C and ammonium nitrogen with γ-PGA treatment had remarkable differences compared with the control.Under normal fertilization,the treatment with 50 mg/kg of γ-PGA led to significant increasing of chlorophyll under ground fresh weight compared with the control.In particular,the production of above ground fresh weight was increased by 8.8%.The efficiency of ammonium nitrogen and nitrogen was improved by 10.6%.The nitrate content decreased by 44.8% and the content of Vc increased by 18.1%,by using 100 mg/kg of γ-PGA.When nitrogen fertilizer reduced by 15%,the treatment of 20 mg/kg of γ-PGA improved the nitrogen use efficiency by 10.2%-11.6%. |
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| Keywords: | Brassica chinensis fertilizer poly（γ-glutamic acid） |
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